Subtraction
Addition
Rounding/Estimating
Word Problems
100

subtract:

58g - 25g

58g - 25g = 33g

100

48 m + 9 m

57m

100

round 23 to the nearest 10

20

100

Landon weighs 26 kilograms.  Daniel weighs 18 kilograms.  How much do they weigh together?

44 kilograms

200

81mL - 34mL

81mL - 34mL = 47mL

200

356kg + 35kg

391kg

200

round 774 to the nearest 100

800
200

Presley picks 148g of raspberries and 329g of blueberries.  What is the difference between the weight of blueberries and raspberries?

181g

300

323cm - 219cm = 

323cm - 219cm = 104cm

300

576 km + 167 km

743 km

300

round 4:48 to the nearest 10 minutes

4:50 

300

Jonathan G starts playing Fortnite at 4:16.  He finishes at 4:52.  How long did he play?

52-16 = 36 minutes

400

605L - 267L

605L - 267L = 338L

400

428 + 572

1,000

400

round to the nearest 10, then estimate:

43 + 38

43≈40 38≈40

40 + 40 = 80

400

A rocket travels 256 km every minute.  How far does it travel in 2 minutes?

512 km

500

3kg 17g - 1kg 249g =

1kg 768g

500

2L 433mL + 4L 576mL =

7L 9mL

500

round and estimate:

416 + 283

416≈420  283≈280

420 + 280 = 700

500

Mr. M. cuts a rope into 3 pieces.  If each piece is 115 cm, how long was the rope?

345 cm